0000000000520417

AUTHOR

Yvan Campos

showing 3 related works from this author

Palmitoylation is a post-translational modification of Alix regulating the membrane organization of exosome-like small extracellular vesicles.

2018

Abstract Background Virtually all cell types have the capacity to secrete nanometer-sized extracellular vesicles, which have emerged in recent years as potent signal transducers and cell-cell communicators. The multifunctional protein Alix is a bona fide exosomal regulator and skeletal muscle cells can release Alix-positive nano-sized extracellular vesicles, offering a new paradigm for understanding how myofibers communicate within skeletal muscle and with other organs. S-palmitoylation is a reversible lipid post-translational modification, involved in different biological processes, such as the trafficking of membrane proteins, achievement of stable protein conformations, and stabilization…

0301 basic medicineAlix (also known as PDCD6IP)Protein ConformationLipoylationLipid BilayersBiophysicsSkeletal muscle cellsCell Cycle ProteinsExosomesBiochemistryExosomeTetraspanin 29Cell Line03 medical and health sciencesExtracellular VesiclesPalmitoylationTetraspaninExtracellularHumansLipid bilayerMuscle SkeletalMolecular BiologyCells CulturedEndosomal Sorting Complexes Required for TransportChemistryVesicleCalcium-Binding ProteinsCell MembraneExtracellular vesicleTetraspaninSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Cell biologyExosomeProtein Transport030104 developmental biologyS-palmitoylationMembrane proteinextracellular vesicles (EVs)Skeletal muscle cellProtein Processing Post-TranslationalProtein BindingSignal TransductionBiochimica et biophysica acta. General subjects
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Identification and characterization of the nano-sized vesicles released by muscle cells

2013

AbstractSeveral cell types secrete small membranous vesicles that contain cell-specific collections of proteins, lipids, and genetic material. The function of these vesicles is to allow cell-to-cell signaling and the horizontal transfer of their cargo molecules. Here, we demonstrate that muscle cells secrete nano-sized vesicles and that their release increases during muscle differentiation. Analysis of these nanovesicles allowed us to characterize them as exosome-like particles and to define the potential role of the multifunctional protein Alix in their biogenesis.

Cell typeCellular differentiationBiophysicsBiologyExosomesBiochemistryExosomeExosome; Nanovesicle; Alix; Ozz-E3 ubiquitin ligase; Muscle cellArticleCell Line03 medical and health sciencesMice0302 clinical medicineOzz-E3 ubiquitin ligaseStructural BiologyGeneticsMyocyteAnimalsSecretionMolecular Biology030304 developmental biology0303 health sciencesMuscle CellsSettore BIO/16 - Anatomia UmanaVesicleCalcium-Binding ProteinsCell MembraneMuscle cellCell DifferentiationCell BiologyCell biologyNanostructuresExosomeAlixCell culture030220 oncology & carcinogenesisNanovesicleBiogenesisFEBS Letters
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Alix protein is substrate of Ozz-E3 ligase and modulates actin remodeling in skeletal muscle

2012

Alix/AIP1 is a multifunctional adaptor protein that participates in basic cellular processes, including membrane trafficking and actin cytoskeleton assembly, by binding selectively to a variety of partner proteins. However, the mechanisms regulating Alix turnover, subcellular distribution, and function in muscle cells are unknown. We now report that Alix is expressed in skeletal muscle throughout myogenic differentiation. In myotubes, a specific pool of Alix colocalizes with Ozz, the substrate-binding component of the muscle-specific ubiquitin ligase complex Ozz-E3. We found that interaction of the two endogenous proteins in the differentiated muscle fibers changes Alix conformation and pro…

Ubiquitin-Protein LigasesMuscle Fibers Skeletalmacromolecular substancesBiochemistryCell LineMiceCell MovementTwo-Hybrid System TechniquesmedicineCell AdhesionAnimalsProtein Interaction Domains and MotifsPseudopodiaMuscle SkeletalMolecular BiologyActinMice KnockoutbiologyMyogenesisSettore BIO/16 - Anatomia UmanaCalcium-Binding ProteinsUbiquitinationActin remodelingSkeletal muscleUbiquitin-Protein Ligase ComplexesCell BiologyActin cytoskeletonUbiquitin ligaseCell biologyRepressor ProteinsActin CytoskeletonProtein Transportmedicine.anatomical_structureUbiquitin ligase complexbiology.proteinCell Migration Myogenesis Skeletal Muscle Ubiquitin Ligase Ubiquitination Alix F-actin Ozz-E3 Ubiquitin Ligase Skeletal Muscle CellsCortactinCortactinProtein Binding
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